| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Cooper Shantella E. | Director | 30 IVAN ALLEN JR. BLVD., NW, ATLANTA | /s/ Brittney Anderson, Attorney-in-Fact for Shantella E. Cooper | 06 Jan 2026 | 0001698291 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SO | Deferred Stock Units Holding | Award | $45,000 | +516 | +1.7% | $87.20 | 31,167 | 02 Jan 2026 | Southern Company Common Stock | 516 | $0.000000 | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Represents quarterly director equity retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan for Outside Directors of The Southern Company (Deferred Compensation Plan). Each deferred stock unit represents the right to receive one share of Southern Company common stock. |
| F2 | Deferred stock units are settled in shares of Southern Company common stock on the date(s) following the termination of the reporting person's service on the Board as specified by the reporting person pursuant to the Deferred Compensation Plan. There is no exercise or expiration date. |
| F3 | Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan. |